Components Of Gear Pumps
Gear pumps are positive displacement pumps that use intermeshing gears to transport fluids. They are commonly used in various industrial and hydraulic applications. The main components of a gear pump typically include:
1. Housing or Casing: The housing, often made of metal or cast iron, contains the other components of the gear pump and provides structural support. It also includes inlet and outlet ports for fluid flow.
2. Gears: Gear pumps have two main gears that are typically of the same size. One gear is the driving gear, connected to a motor or an engine, and the other is the driven gear. These gears are precisely machined and have well-defined teeth that mesh together as they rotate.
3. Shafts: Shafts connect the gears to the drive source (e.g., an electric motor or an internal combustion engine). The driving gear is mounted on the input shaft, while the driven gear is mounted on the output shaft. The shafts transmit rotary motion from the drive source to the gears.
4. Bearings: Bearings support the shafts and reduce friction between moving parts, allowing for smooth rotation. Proper bearing lubrication is essential to prevent wear and overheating.
5. Inlet and Outlet Ports: The pump housing has inlet and outlet ports that allow fluid to enter and exit the pump. The design and placement of these ports depend on the specific application and requirements.
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6. Seals and Gaskets: Seals and gaskets are used to prevent fluid leakage from the pump. They are placed at various points within the pump, including around the gears and shafts.
7. End Plates: Gear pumps typically have two end plates, one on each side of the gears, to enclose the pumping chamber and maintain fluid containment.
8. Pressure Relief Valve: Some gear pumps include a pressure relief valve to prevent over-pressurization. This valve opens when the system pressure exceeds a set limit, allowing excess fluid to return to the inlet side or be diverted elsewhere to prevent damage to the pump or the system.
9. Mounting Brackets: In some applications, gear pumps may be mounted on brackets or other structures to secure them in place.
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The operation of a gear pump involves the rotation of the gears within a closed chamber. As the gears mesh together and rotate, they create pockets between the teeth, which draw in fluid from the inlet side. The fluid is then carried between the gear teeth and pushed out through the outlet as the gears continue to rotate. This continuous displacement of fluid makes gear pumps suitable for applications where a steady flow of liquid is required.
Electrical Engineer/ Aerospace Engineer (Guidance and Navigational Control - GNC)
7moIn the figure shown, the gears should rotate in clockwise direction for the fluid to flow upwards...whereas the figure shows the movement in anticlockwise direction. please correct either the direction of gear rotation or the direction of fluid flow (depicted with bubble movement). Giving incorrect information is not good.
Quality & Technical Leader | Material Manager | Manufacturing Engineer | Mechanical Engineer | ISO Internal Auditor | Industrial Energy and technology
1yGear pump applications are limited .. thanks for sharing
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1yJust simplicity of the pump of the working
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Sales Associate at American Airlines
1yThanks for sharing